SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
sem-idade.com
SSL/TLS Certificate
SSL/TLS Certificate for sem-idade.com
Self-signed- Issued by (CA)
- sem-idade.com
- Subject
- sem-idade.com
- Valid from
- Jun 13, 2018
- Valid until
- Jun 13, 2019 (expired 2618 days ago)
- Public key
- RSA 2048-bit
- Serial
- 659B5362
- SHA-256 fingerprint
- 49:CE:E9:75:4F:18:9B:17:6E:82:6D:9B:F3:B5:DE:CD:C1:C6:EF:B4:6B:C3:E5:E6:24:63:46:EF:28:4E:A0:D4
- Chain
- sem-idade.com
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
This certificate has been served since Jul 21, 2026.
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This is today's certificate. Turn on monitoring and we'll watch sem-idade.com continuously, notifying you the moment anything moves across all three signals:
Uptime
We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.
DNS changes
We watch NS, MX, CAA, DNSSEC, CNAME and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.
TLS certificate
We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.
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